Tecumseh flywheel key (woodruff key). The flywheel key aligns the flywheel in the correct position on the crankshaft. If the engine stops suddenly due to hitting a hard object, the flywheel key shears in half to prevent damage to the engine. If the flywheel key is broken, the engine won't start.
Grid is 1 inch square
611004 Flywheel Key
611004 Flywheel Key
Manufacturer Part

611004 Flywheel Key

Genuine OEM Part # 611004
Manufacturer Part
Tecumseh flywheel key (woodruff key). The flywheel key aligns the flywheel in the correct position on the crankshaft. If the engine stops suddenly due to hitting a hard object, the flywheel key shears in half to prevent damage to the engine. If the flywheel key is broken, the engine won't start.
Grid is 1 inch square
611004 Flywheel Key
611004 Flywheel Key
$1.86
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Tecumseh flywheel key (woodruff key). The flywheel key aligns the flywheel in the correct position on the crankshaft. If the engine stops suddenly due to hitting a hard object, the flywheel key shears in half to prevent damage to the engine. If the flywheel key is broken, the engine won't start.
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$1.86
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Frequently Bought with Flywheel Key
W10311524 Air Filter

Flywheel Key Customer Reviews

Common Problems Fixed by the Flywheel Key

Based on customer reports and repair data, this part commonly fixes these issues:

About the Flywheel Key

The flywheel key might have sheared in half. The flywheel key is a small metal piece which fits into the crankshaft and engages with the flywheel. If the engine stops suddenly, the flywheel key breaks in half to prevent damage to the engine. To determine if the flywheel key is broken, remove the flywheel from the engine and inspect the flywheel key. If the flywheel key is broken, replace it.